NCIS follows a fictional team of Naval Criminal Investigative Service Major Case Response Team (MCRT)special agents based at the Washington DC field office in Washington Navy Yard,NCIS Seasons 1-12 DVD Washington, D.C..In real life, the field office is based at the nearby Joint Base Anacostia-Bolling while the Navy Yard is home to the museum and several military commands within the Department of the Navy.NCIS Seasons 1-12 DVD It is described by the actors and producers (on special features on DVD releases in the United States) as being distinguished by its comedic elements, ensemble acting, and character-driven plots.